IE6 reserved word "functions" in class name

Internet Explorer 6 has several excuses for not wanting to display certain DIVs or text in DIVs. Most of them arise from the internal hasLayout property which has to forced to -1 (on!) to unhide those HTML parts. I just came around another, very odd reason for why IE6 hides text in certain situations: CSS classnames which interfere with reserved words such as functions. Simple example: